LM3434SQ-20AEV/NOPB

Series:	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Current - Output / Channel:	20A
Moisture Sensitivity Level (MSL):	--
Outputs and Type:	1, Non-Isolated
Voltage - Output:	--
Features:	Dimmable
Voltage - Input:	-9 V ~ -30 V
Supplied Contents:	Board(s)
Utilized IC / Part:	LM3434

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LM3434SQ-20AEV/NOPB LED Driver Evaluation Board

The LM3434SQ-20AEV/NOPB LED Driver is a voltage regulator integrated circuit (IC) designed specifically for driving LEDs. It is an ideal choice for applications in automotive, portable, computer and consumer lighting applications. Using pulse width modulation (PWM), this device is capable of providing precise multi-level brightness control which makes it perfect for use in applications that need to have variable brightness levels. The LM3434SQ-20AEV/NOPB Evaluation Board from Texas Instruments is designed to showcase the performance and features of this device.

Application Fields

The LM3434SQ-20AEV/NOPB Evaluation Board can be used for a wide range of applications ranging from automotive lighting, computer lighting, consumer lighting, portable lighting and much more. The compact size of the evaluation board also allows it to be used in space constrained applications with ease. The LM3434SQ-20AEV/NOPB Evaluation Board comes with on board LEDs which are ideal for demonstrating the various features and performance capabilities of the LED driver.

Working Principle

The LM3434SQ-20AEV/NOPB LED Driver Evaluation Board functions using a simple pulse width modulation (PWM) technique which has been adapted for LED driver applications. PWM is simply a method used to control digital pulses by varying the width of pulses to obtain a desired output. In the case of the LM3434SQ-20AEV/NOPB Evaluation Board, the device sends digital pulses with different pulse widths to the on board LEDs causing them to emit varying levels of brightness. By adjusting the PWM duty cycle, different levels of brightness can be achieved.

On-Board Components

The evaluation board is stocked with essential components needed to effectively use the LM3434SQ-20AEV/NOPB LED driver. The components that can be found on the board include:

• LM3434SQ-20AEV/NOPB LED Driver IC
• R1 Current Sense Resistor
• R2 Turn-On Resistor
• C1 and C2 Output Capacitor for Smooth PWM Operation
• C3 Input Capacitor for Noise Reduction
• Screw Terminals for Easy Connection of External Wiring
• On-board LEDs

Conclusion

The LM3434SQ-20AEV/NOPB Evaluation Board from Texas Instruments is an ideal solution for applications involving the use of LEDs. The constant current mode of operation gives it the ability to provide precise multi-level brightness control. The evaluation board includes essential components such as the LED Driver IC, current sense resistor, turn-on resistor, and capacitors that make it ideal for use in various LED driver applications. With the evaluation board, users are able to easily demonstrate the features and performance of the LM3434SQ-20AEV/NOPB LED Driver IC.

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